package src.com.itheima.danlimoshi;

public class Singleton {
    private volatile static Singleton uniqueInstance;

    private Singleton() {
    }

    public static Singleton getUniqueInstance(){
        if (uniqueInstance==null)
            synchronized (Singleton.class){
            if (uniqueInstance==null)
                uniqueInstance = new Singleton();
            }
        return uniqueInstance;
    }
}
